quilt

Prepare quilt configuration

cat << EOF > ~/.quiltrc
QUILT_DIFF_ARGS="--no-timestamps --no-index -p ab --color=auto"
QUILT_REFRESH_ARGS="--no-timestamps --no-index -p ab"
QUILT_SERIES_ARGS="--color=auto"
QUILT_PATCH_OPTS="--unified"
QUILT_DIFF_OPTS="-p"
EDITOR="vim"
EOF

• EDITOR specifies the preferred editor for interactive patch editing
• The other variables control the patch format property like a/, b/ directory names and no timestamps
• FreeBSD does not support the --color=auto option and -pab must be written as -p ab
•  -p ab is working with quilt 0.63 on Linux and is documented in man page.

Adding a new patch

make package/example/{clean,prepare} V=s QUILT=1
# or
make package/example/host/{clean,prepare} V=s QUILT=1
cd build_dir/target-*/example-*
quilt push -a
# or add patch other file
quilt import /path/to/010-main_code_fix.patch

quilt new 010-main_code_fix.patch
quilt edit src/main.c
quilt diff
quilt refresh
cd ../../..
make package/example/update V=s
make package/example/{clean,compile} package/index V=s

Edit an existing patch

make package/example/{clean,prepare} V=s QUILT=1
cd build_dir/target-*/example-*
quilt series
quilt push 010-main_code_fix.patch
quilt edit src/main.c
quilt files
quilt diff
quilt refresh
cd ../../../
make package/example/update V=s
make package/example/{clean,compile} package/index V=s

Adding or editing kernel patches

make target/linux/{clean,prepare} V=s QUILT=1
cd build_dir/target-*/linux-*/linux-*
quilt push -a
quilt new generic/010-main_code_fix.patch
or 
quilt new platform/010-main_code_fix.patch
quilt edit arch/mips/xxx/xxx.c
quilt diff
quilt refresh
cd ../../../..
make target/linux/update V=s

Adding or editing toolchain patches

make toolchain/gcc/{clean,prepare} V=99 QUILT=1
cd build_dir/toolchain-mips_r2_gcc-4.3.3+cs_uClibc-0.9.30.1/gcc-4.3.3
make toolchain/gcc/update V=99

Naming patches

The patches-* subdirectories contain the kernel patches applied for every OpenWrt target.
All patches should be named 'NNN-lowercase_shortname.patch' and sorted into the following categories:

0xx - upstream backports
1xx - code awaiting upstream merge
2xx - kernel build / config / header patches
3xx - architecture specific patches
4xx - mtd related patches (subsystem and drivers)
5xx - filesystem related patches
6xx - generic network patches
7xx - network / phy driver patches
8xx - other drivers
9xx - uncategorized other patches

ALL patches must be in a way that they are potentially upstreamable, meaning:

- they must contain a proper subject
- they must contain a proper commit message explaining what they change
- they must contain a valid Signed-off-by line

Refreshing patches

# packge
make package/example/refresh V=s
# kernel 
make target/linux/refresh V=s

套件路經

make package/feeds/packages/rp-pppoe/prepare V=s QUILT=1
make package/feeds/packages/rp-pppoe/update V=s
make package/feeds/packages/rp-pppoe/compile package/index V=s

make package/easycwmp/prepare V=s QUILT=1
make package/easycwmp/update V=s
make package/easycwmp/compile package/index V=s

make package/network/services/ppp/prepare V=s QUILT=1
make package/network/services/ppp/update V=s
make package/network/services/ppp/compile package/index V=s

make package/boot/uboot-mediatek/prepare V=s QUILT=1 
make package/boot/uboot-mediatek/update V=s
make package/boot/uboot-mediatek/compile package/index V=s

make package/feeds/packages/rp-pppoe/prepare V=s QUILT=1
make package/feeds/packages/rp-pppoe/update V=s
make package/feeds/packages/rp-pppoe/compile package/index V=s

參考資料

https://openwrt.org/docs/guide-developer/toolchain/use-patches-with-buildsystem

https://www.twblogs.net/a/5b96db362b717750bda6bd8d